Effects of Liming and N and P Fertilizers on Grain Yield of Barley.
1987
Desta Beyene(Research Officer)
Soil avidity is one of the major limiting factors to crop production in the Bedi Plateau. A field study on the response of barley (Hordeum vulgare L.) to liming under different S and P levels was conducted for four years (1978 to 81) on an acidic soil at Bedi, Ethiopia. Ground limestone (Ca CO,) at 0, 1.5, 3.0 and 4.5 t/ha and N/P levels at 0/0,30/13. 60/26 and 90/39 'kg/ha were applied. Lime was broadcast and mixed with the soil a month before sowing. Fertilizer (urea and triple superphosphate) was applied in bands along the rows at the time of sowing. The results indicated that 3 t/ha of limestone was adequate to maintain barley grain yields of 15 q/ha or higher. The residual effect of liming on grain yield was minimal. Grain yield responded significantly to 60/26 kg/ha of N/P and continued to provide a mean yield of 15 q/ha for a period of four years. Liming increased soil pH by 25.2% while the changes on available P, exchangeable Ca and Mg were negligible. The percent content of IV, P, Mn and Zn in the plant tended to increase ewith liming.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
تم تزويد هذا السجل من قبل Ethiopian Institute of Agricultural Research
